Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Quantitative Aptitude Average

The average weight of students in a class is 45 kg. When 4 new students whose weights are 42 kg, 36.5 kg, 37.5 kg and 40 kg are admitted, the average weight decreases by 0.75 kg. What is the number of students in the class now?

1

32

2

35

3

30

4

28

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